Dipping-machine.



J. w. DENMEAD.

DIPPING MACHINE.

APPLICATION FILED MAR. 24, 1911.

Patented Jan. 30,1912.

2 sums-sum: 2.

W M i W- DIPPIKG-MAGHINE.

Specification of Letters Eatent.

BEST AVAILABLE COPY Patented 5 ea Application filed March so, 1911.Serial No. 616,682.

To all whom it may concern Be it known that 1, JOHN W. DENMEAD,

, a citizen of the United States, residing at Akron, in the county ofSummit and Sitate of Ohio, have invented,new and useful improvements inDippingdvlachines. otwhich the following is aspecification.

This invention has relation to improve-- I ments in dipping machines andhas especial relation to devices to be used in carrying outthemanufacture of rubber goods by what is known as the dipping process ascontradistinguished from the process of making them by molding.

The/object of the invention is to provide a device by Which a pluralityof forms, suitably supported, may be dipped in a siccative solution atdetermined intervals and after being dipped are raised, from thesolution and later inverted so that the surplus undried solution willnot accumulate at one point on the forms whereby better and evenerarticles are produced.

A further object is to make the machine substantially automatic, to beoperated by a timed shaft so that the intervals between the dippingoperation may be regulated as Well as the inverting of the forms aftereach dipping operation, and my invention further contemplates providingan mite matic shut-0E for the device when. the propertime has expired.

Nith the foregoing and other objects in view, the invention. consists inthe novel construction, combination and arrangement of partsconstituting the invention to be hereinafter specifically described andillustrated in the accompanying drawings which form a'part hereofwherein is shown the preferred embodiment of the invention, butit is tobe understood that changes,.variations and modifications can be resortedto which come within the scope of the claims hereunto appended.

In the drawings in which similar refference numerals indicate like partsthe different figures, Figure 1, is a view in side elevation of thedevice embodying this inl vention with portions omitted: and, Fig. 2, isa view in end elevation looking from the right of Fig. 1.

Referring to the drawings in detail, th reference numerals l, 2, and idesign four upright parallel posts. each of which rounded portion 12 isa loop 13 f the tree end oi the arm has at its upper and lower endscolla s liter securing the posts to fixed supports :h as the floor andceiling of a room. 'll poets usually consist of polished pipes an rranged at the corners of an iinag allelograin. Extending between i as 1and is a cross-anti 6' provided at with. bearings '2' slidahly mountedvertical reciprocation. between the and 2, and between the posts 3 an asimilar cross-arm parallel with. 6 es and provided with end bearings Sif to the bearings Y. The inner faces of arms are provided with a pairout ietween each of which is secured o the ends'of an upwardly-extendingvs yolre 7c 10 which forms an arched iner and serves to cause the crossarms to re ceate vertically in unison with each of cured to the yoke 10is an upv jecting strap 11 preferably provid rounded central portion 12.l nci end of which is threaded and on threaded opening in one sidebuckle ll which is pro ided with wins 15 for easy manipulation.Extending opposite end of the turnbuckle threaded. shaft 16 the upperend secured to the lower end of s thrones the sides of whicheirt-enExtending between the posts 5 if-shaped bracket lil held in clamps 20.The rear end of the is bifurcated .to provide a pair between which ispivot-ally moon one end of an oscillatory arm 22 the opp end of which isprovided with an apeiriuie to receive the pin. 18 in the clevis 16.ljonnected with the extended end of the arna 5252 is a rope or cord 23pass 1g over suitable pulleys i l/to a counter-we Jill/Q5 atUglidiifilltfi end. whereby the weight of the its connected n'ieclninisrarm is further provi for a purpose to be later desrr liecured insuitable aringrs posts l and l a (1% mtt- 28 on mountml a cam 1:: underf r so of? the roller tire. reciprorai ion 1 mocha 22 to lower the yoke10 when the roller en'- counters this cut-out portion. The cam 29 isfurther provided with a raised portion 31 for raising the arm 22 higherthan its normal position when the roller 26 is on the main portion ofthecam 29. The hub 32 of the cam is provided on its outer face with teethto constitute one member of a grabclutch. Mounted on the shaft 28 is acompanion clutch-member 33 having one face thereof provided with teethto engage with the end of the hub 32 and establish clutching relationtherewith. The clutch-member 33 is splined on the shaft 28 so as to belongitudinally shiftable thereto and yet be rotated in unison therewith.The clutchmember 33 is shifted into and out of clutching engagement bymeans of a clutch-lever 34 pivotally mounted on an arm 35 securedpreferably ,to the post 3.

Mounted on the post 4 is a bracket 36 the outer end of which is providedwith an aperture to-receive a shaft 37 the opposite end of which issupported by a suitable bearing 33 on the post 3 and which is omitted inFi 1 'to prevent confusion of lines. The shaf 37 is threaded a ortion ofits distance and is provided inside the bracket with a threaded nut 39the outer face of which is formed to constitute a sprocket-wheel 40 toreceive a sprocket-chain 41 the opposite portion of which passes over alarger sprocketwheel 42 on the shaft 28. The threaded shaft is revolvedby means of a belt applied to the pulley 43. Mounted on the shaft 37 isan adjustable collar 44 arranged when the shaft is shiftedlongitudinally by means of the nut 39 to engage the clutch-lever 34 andthrow it to disengage theclutch-memher 33 from clutching relation withthe hub 32.

Extending between the cross-bar 6 and the complementary cross-barbetween the posts 3 and 4 is a rotatable shaft 45 having fixed securelythereto a plurality of depending brackets 46-to'the lower faces of whichis attached aplate47 from which depends a plurality of forms 48 on whichthe rubber articles are formed from repeated clippings in a siccativesolution. Fixedly mounted'on the shaft 45 adjacent to the cross-arm 6 isa small spur gear 49. Mounted pivotally on a bolt or pin 50 on thecross-arm 6 is a segmental gear 51 arranged to intermesh with thebeveled gear 49. The opposite end of the segmental gear 51 is providedwith a friction roller which is adapted to en counter the foot 53 of abracket 54 secured to the post 1, and positioned to encounter the roller52 when the yoke 10 and its connected mechanism is raised beyond acertainpoint and as theroller engages the foot 53 the segmental gear !isgiven a partial rotation which causes a corres ending movement of thegear 49 and the s aft 45 which inverts permit the forms 48 to enter.

BEST AVAILABLE COPY the forms 48, at any time when the forms 8 have beenraised beyond the point shown in Fig. 1.

Below the plate 47 is a large shallow tank 55 supported at each end by apair of legs 56. Extending longitudinally below the tank and rotatablymounted in the members which are bent inwardly over the top of the toextend to the central line of the tank and there contact to close thetank. I preferably provide on the ends of the arms 59, weights or bars61. Projecting outwardly from the arms'59 at one end of the tank arepins 62 provided with transverse apertures to freely receive operatingrods 63 which are provided at their upper ends with apertured heads 64pivotally mounted on a lug 65secured-to the inner face of 'thecross-piece 6. Mounted on the rods 63 are adjustable collars 66 as shownin the drawings.

Assuming that the plate 47 is provided with a plurality of dependingforms 48 and the tank approximately filled with a proper siccativesolution, the shaft 28 is rotated by means of the pulley 43 and as theroller 26 encounters the depressed portion 30 of the cam 29 the free endof the arm 22 will be lowered causing the forms 48 to approach the topofthe tank 55. Simultaneously with the lowering of the cross-arm 6 therods 63 will be forced downwardly causing the up per. collars 66 toencounter the pins 62 and force the arms 59 apart carrying with them thecovers 60 so as to uncover the tank to As soon as the roller 26 leavesthe depressed portion 30 of the cam the forms will be raised to theposition shown in the drawings and the covers of the tank will bereturned to their closed position; As soon as the roller 26 encountersthe raised portion 31 of the cam the outer free end of the arm 22" willbe raised beyond its normal position which causes the cross-arm 6 torise in unison;

therewith, in doing which the roller 52 on the segmental gear willencounter the foot 53 of the bracket 54 causing an inversion of theplate 47 with the forms 48 and will hold them in the inverted positionas long as :the roller 26 is on the raised portion 31 of the cam, whichintervals can be easily determined or timed, after which the parts willbe restored to the position shown in the drawings.

In view of the fact that the threaded shaft 37 is driven by the shaft 28the tappet-col- -lar 44 will at a determined time throw the llO1015799,, "BES AVAILABLE COPY a clutch-lever 3; into its inoperativeposition to disengage clutching reiation between the members Li and 53of the clutch. From this will be seen that the parts or" thematomatically shutiiseli? otl' without any funthcr assistance.

I claim-z l. A rlippinginzichine comprising a re ciprocally-movablefornrbearing men'iber, a tank containing a solution constituting a bathinto which the terms are adapted to dip, a closure device for saidftankand means operative onlywhen said formbearing member is shifted andarranged to move said closure member to its open or closed position onthe approach and recession respectively of said form-bearing member. 1

2. A dipping machine comprising a reciprocally-movable form-bearingmember, a

tank containing a solution into which the,

forms are adapted to dip, a pair of plates constituting a closure devicefor said tank,-

and means operative only when said formbearing x'nember isishifted andarranged to move said plates to their open position on the approach ofsaid member and to return them to their closed position on the recessionof said member f 3. A dipping machine comprising a reciprocally-movableform-bearing member, a tank containing a bath into which the forms areadapted to dip, a pair of plates arranged to constitute aclosure devicefor said tank, a pair of rocking arms connected with said plates, meansconnected with said rockingarms operating to move said plates in unisonwiththe movement of said form-bearing member to cause said plates tomove to their open position on the approach of said formbearing memberand to move them into their closed position on the recession of said member.

i:- A dipping machine comprising a reciprocallyemovable form-bearingmember, a tank containing a solution constituting a bath into which theforms are adapted to dip, a plate ctmstituting a closure device for saidtank, a rocking-arm connected to said plate, a counterbalance for saidclosure device, and means connected with said formbearing member andengaging said rockings arm operating to move said closure member to itsopen position upon the approach of said form-bearing member and arrangedto return said closure device to its closed position on the recession ofsaid member.

5. A dipping machine comprising a reciprmally-movable form-bearingmember, a tank containing a solution constituting a bath into-which theforms are adapted to clip, a plate constituting a closure device forsaid tank, an. arm supportingsaidplatejh unison with themovementsofxsaid -formbera (3. A dipping-machinecompnsmg a recip 1ibearing member to shittsaidclosure mem-' rooally-movable. 'i'ormbearingsmember,-- pa tank containing asolution' constituting bath into which theforms areiadaptedrto dip, a pair of plates constituting a closure devicefor said tank, a pair of armsic'on i nected with andconstitutingasupportmg.-

medium for said plates, -sha-fts onwhich saidarms are mounted to permitth'e' movement' of said plates into and out of their open and closedposition, and means operating toshift said plates in unison withtheanovementwff said form-bearing member:

3 +7. Adipplng machine comprisingarevolu 0' ble form-carry ng member,means arranged to vertically reciprocate said-member, means engagingsaid member and tending to cause a partial revolution thereof, fa bathinto which the forms carried by said members are adapted to dip andmeans operative only whensaid form-carrying. member is shifted andarranged to close said bath when said forms are removed therefrom.

8. A dipping machine embodying -a supporting instrumentality, a carriagemounted thereon, a form-bearing member on said carriage, a tankcontaining a solution constituting a bath into which the forms on saidform-bearing member are adapted to dip, a closure (18"108 on said tankarranged tobe shifted from said tank and replaced coincident with theapproach and recession of said form-bearing member, and meansoperativeonly whensaid carriage is shifted and arranged to shift said closuredevice.

-9.'1A dipping machine comprising a supporting instrumentality, acarriage mounted thereon, a revoluble form-bearing member mounted onsaid carriage, a vertically oscillatory armconnected with said carriagetor raising and lowering thesame, a roller mounted on said arm, aloosely mounted cam engaging said roller, a shaft for said cam, a clutchfor operating said cam, automatic mechanism operating to throw saidclutch into its inoperative position at a predeterminedinterval, and abath into which the forms are adapted to dip. -10. A dipping machinecomprising a supporting instrumentality, acarriage slidably mountedthereon, a rotatable shaft on said said formbearing member, means forvertically reciprocating said carriage and-a tank containing a solutionconstituting a' bath into which the forms carriedfby said member areadapted to dip 11.- A dipping machine embodying a formbearing'member, atank containin a solution constituting a bath into which t e formscarried by said member are to be immersed,

a closure device for said tank arranged 'tobe moved to its open positionprevious. to

the immersion of said forms and returned. to its closed position upontheir withdrawal, and means operative only when said formbearing memberis shifted and arranged to shift said closure device.

12. A dipping machine comprisinga forni-.

bearing member, a tank contalning a solution constituting a bath intowhich the forms carried by said member are adapted to .be immersed,means for produein the immersin of the forms borne by said members insaid bath, a closure device for said tank ar- BEST AVAILABLE COPYintervals, a tank cont-ainin a solution constituting a .bath into whicthe forms carried by'said member are adapted to be ranged to' be, movedto itsclosed. position dipped, a closure device for said tank, and 35means operative only when said form-carrying member is shifted andarranged to shift said closure device.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

JOHN \V. DENMEAD.

. -\Vitnesses:

C. E. HUMPHREY,

A. E. Knmo.

